A way we could find the answer is to subtract, so 175 - 120 equals 55, so hed $55 more to reach $175!
Answer:
The function
{\ displaystyle f (z) = {\ frac {z} {1- | z | ^ {2}}}} {\ displaystyle f (z) = {\ frac {z} {1- | z | 2}
It is an example of real and bijective analytical function from the open drive disk to the Euclidean plane, its inverse is also an analytical function. Considered as a real two-dimensional analytical variety, the open drive disk is therefore isomorphic to the complete plane. In particular, the open drive disk is homeomorphic to the complete plan.
However, there is no bijective compliant application between the drive disk and the plane. Considered as the Riemann surface, the drive disk is therefore different from the complex plane.
There are bijective conforming applications between the open disk drive and the upper semiplane and therefore determined as Riemann surfaces, are isomorphic (in fact "biholomorphic" or "conformingly equivalent"). Much more in general, Riemann's theorem on applications states that the entire open set and simply connection of the complex plane that is different from the whole complex plane admits a bijective compliant application with the open drive disk. A bijective compliant application between the drive disk and the upper half plane is the Möbius transformation:
{\ displaystyle g (z) = i {\ frac {1 + z} {1-z}}} {\ displaystyle g (z) = i {\ frac {1 + z} {1-z}}}
which is the inverse of the transformation of Cayley.
When integers have the same sign always add the integers, either both have negative sign or positive sign.
for example +5 + 3 = +8
and -5 - 3 = -8
but the answer will have the same sign as the numbers have like in the above example when both are positive answer is with positive sign and when both are with minus sign answer is with minus sign.
when integers have opposite signs, always find the difference between them or do subtraction but the answer is with sign of the greater value integer, for example
-5 + 3 = -2, the answer is with - sign because greater number is 5 and it is with - sign.
+5 - 3 = +2
now the answer is with + sign because 5 is with + sign.
